Patents by Inventor Richard D. Harza

Richard D. Harza has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ergonomic antifatigue seating device and method
    Patent number: 5735575
    Abstract: A method and apparatus is disclosed for periodically and rhythmically lifting one hip of a seated person and then the other, thereby simulating the muscle stimulation and relaxation imparted to a person by walking. A rotatable support panel is provided for alternately lifting and moving backward and forward each hip of a seated person.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: April 7, 1998
    Inventor: Richard D. Harza
  • Ergonomic antifatigue seating device and method
    Patent number: 5588704
    Abstract: A method and apparatus is disclosed for periodically and rhythmically lifting one hip of a seated person and then the other, thereby simulating the muscle stimulation and relaxation imparted to a person by walking. A rotatable support panel is provided for alternately lifting and moving backward and forward each hip of a seated person.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: December 31, 1996
    Inventor: Richard D. Harza
  • Ergonomic anti-fatigue seating device and method
    Patent number: 5022385
    Abstract: A method and apparatus is disclosed for periodically and rhythmically lifting first one hip of a seated person and then the other, thereby simulating the muscle stimulation and relaxation imparted to the person through walking while the person is seated. Inflatable air bags provide lift to the seated person while an electric timer and control valve control the timing and distance of inflation.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: June 11, 1991
    Inventor: Richard D. Harza
  • Refuse disposal apparatus
    Patent number: 4044569
    Abstract: Apparatus is provided for compressing refuse, for freezing the compressed refuse, and for storing the frozen, compressed refuse for subsequent pickup by a refuse collector. A clam-shell like device with hold bars thereon is utilized for a backup structure for previously frozen refuse, which previously frozen serves as a backup for the compression of fresh refuse. The frozen refuse is maintained at optimum temperature.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: August 30, 1977
    Inventor: Richard D. Harza